Update zabbix_agent.sh

zabbix_agent.sh

@@ -24,7 +24,7 @@ elif [ -f /etc/redhat-release ]; then
     rpm -ivh https://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-1.el7.noarch.rpm
     # install the zabbix agent
     yum install -y zabbix-agent
-    cat << EOF >> /etc/firewalld/services/zabbix.xml
+    cat << EOF >> /etc/firewalld/services/zabbix-agent.xml
 <?xml version="1.0" encoding="utf-8"?>
     <service>
         <short>zabbix agent</short>
@@ -33,7 +33,7 @@ elif [ -f /etc/redhat-release ]; then
         <port protocol="udp" port="10050"/>
     </service>
 EOF
-    firewall-cmd --add-service=zabbix --permanent
+    firewall-cmd --add-service=zabbix-agent --permanent
     firewall-cmd --reload
 else
     echo "Unable to determine linux distro"